I often have patients ask me how to extract teeth without pain. I always say with a smile that you have cooperated well. In fact, I am operating with my heart and anesthesia is in place, and only when the patient is pain-free can he cooperate with the surgery. At present, the anesthetics used are newer, plus the pressurized syringe, and the tooth extraction is done with minimally invasive technology, and the postoperative reaction is light. During the summer vacation, a female university student came back from abroad and asked me to extract her wisdom teeth, she was in time constraint and asked to extract four wisdom teeth at one time. She said it was a little painful this time, and it was better than she thought. There are many factors that cause pain, and pain relief is what we try to do.